Finding the Fourth Proportional to 104,913.30, 144,780.36 and 57,166.66
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Solution
The fourth proportional to 104,913.30, 144,780.36 and 57,166.66 is: 78,889.99
Step by Step Solution
- Step 1: Write the proportion equation
104,913.30 : 144,780.36 = 57,166.66 : x - Step 2: Convert to fraction form
104,913.30/144,780.36 = 57,166.66/x - Step 3: Cross multiply
104,913.30x = 144,780.36 × 57,166.66 - Step 4: Simplify right side
104,913.30x = 8,276,609,614.80 - Step 5: Solve for x
x = 8,276,609,614.80/104,913.30 - Step 6: Final answer
x = 78,889.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.